Facebook Plan on Web Browsing Rouses Alarm at Privacy Groups

The U.S. should investigate whether Facebook Inc.’s tracking of users’ Web browsing activities violates an agreement with the government to ensure people’s privacy, an advocacy group said.

Facebook, the biggest social networking site, began monitoring the Web habits of its users following a June 12 announcement. That’s contrary to the company’s prior representations, according to a letter sent to the Federal Trade Commission by Kostas Rossoglou, senior legal officer of the European Consumer Organization and Jeffrey Chester, executive director of the Center for Digital Democracy.